______ is the total expected length of time an organism is alive, from birth to death.
Reproduction
Growth
Lifespan
Cell division
Question 21 Reproduction is essential to living organisms in order to (a) keep the individual organism alive (b) fulfil their energy requirement (c) maintain growth (d) maintain the continuity of species from one generation to another generation
Reproduction is essential for living organisms in order to :
(a) keep the individual organism alive
(b) fulfil their energy requirements
(c) maintain growth
(d) continue the species for ever
Question 29 Can you consider cell division as a type of reproduction in a unicellular organism? Give one reason.